JPS5667327A - Production of polyurethane elastomer - Google Patents
Production of polyurethane elastomerInfo
- Publication number
- JPS5667327A JPS5667327A JP14482279A JP14482279A JPS5667327A JP S5667327 A JPS5667327 A JP S5667327A JP 14482279 A JP14482279 A JP 14482279A JP 14482279 A JP14482279 A JP 14482279A JP S5667327 A JPS5667327 A JP S5667327A
- Authority
- JP
- Japan
- Prior art keywords
- reacting
- polyester
- aromatic diisocyanate
- intermediate polymer
- terminated polyester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE: To obtain a polyurethane elastomer having excellent elongation recovery and solution stability, by reacting an OH-terminated polyester with an aromatic diisocyanate by the addition of water and subsequently reacting the product with a diamine.
CONSTITUTION: An intermediate polymer is prepared by reacting an OH-terminated polyester, m.p.≤40°C, MW 1,500W7,000, with a sym. aromatic diisocyanate in a mol ratio, -NCO/-OH, of 2W4, by the addition of water in a molar amount calculated from the formula: (the number of mols of aromatic diisocyanate - the number of mols of polyester) × a, wherein a is 0.05W0.30. Then, a linear polymer containing segments represented by formulas I, II and III, wherein R is a sym. aromatic group, R' is a polyester residue derived by removing OH groups from the OH- terminated polyester, m.p.≤40°C, MW 1,500W7,000 and R" is a bivalent organic group, is obtained by reacting the resulting intermediate polymer with 0.70W 0.96eq. of a diamine per eq. of the residual isocyanato groups of the intermediate polymer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54144822A JPS5856530B2 (en) | 1979-11-07 | 1979-11-07 | Manufacturing method of polyurethane elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54144822A JPS5856530B2 (en) | 1979-11-07 | 1979-11-07 | Manufacturing method of polyurethane elastomer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5667327A true JPS5667327A (en) | 1981-06-06 |
| JPS5856530B2 JPS5856530B2 (en) | 1983-12-15 |
Family
ID=15371253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54144822A Expired JPS5856530B2 (en) | 1979-11-07 | 1979-11-07 | Manufacturing method of polyurethane elastomer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856530B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150142A (en) * | 1983-02-15 | 1984-08-28 | 東洋紡績株式会社 | Knitted fabric for swimming suit |
| JPS6420302A (en) * | 1987-11-04 | 1989-01-24 | Toyo Boseki | Swimming suit |
-
1979
- 1979-11-07 JP JP54144822A patent/JPS5856530B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150142A (en) * | 1983-02-15 | 1984-08-28 | 東洋紡績株式会社 | Knitted fabric for swimming suit |
| JPS6117939B2 (en) * | 1983-02-15 | 1986-05-09 | Toyo Boseki | |
| JPS6420302A (en) * | 1987-11-04 | 1989-01-24 | Toyo Boseki | Swimming suit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5856530B2 (en) | 1983-12-15 |
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